Water-cooler.



No.7'79,581. PATENTED JAN.10, 1905. L. H. BRINKMAN.

WATER COOLER.

APPLICATION FILED D170. z, 1903.

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g {OTTIQH No. 779,581. PATENTED JAN. 10, 1905. L. H. BRINKMAN.

WATER COOLER.

APPLIOATION FILED DEC. 2, 1903.

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UNITED STATES Patented January 10, 1905.

PATENT OFFICE.

LOUIS HERMAN BRINKMAN, OF WEST HARTFORD, CONNECTICUT, AS- SIGNOR TOWVHITLOCK COIL PIPE COMPANY, OF WEST HARTFORD, CONNECTICUT, A CORPORATION OF CONNECTICUT.

WATER-COOLER.

SPECIFICATION forming part of Letters Patent N0. 779,581, dated January 10, 1905.

Application filed December 2, 1903. Serial No. 183,427.

To all whom it may concern:

Figure 1 represents a side View of the hoodof an automobile and containing a water-cooler embodying my invention. Fig. 2 is a front View of the same. Fig. 3 is a sectional view of a portion of my improved water-cooler, the section being shown on line 3', Fig. 4. Fig. A

is a vertical sectional view of my improved water-cooler on line 4 4, Fig. 2. Fig. 5 is a sectional view through two of the water-passages on line 5, Fig. A; and Fig. 6 is a top view of one end of the corrugated sheets inclosing the uppermost water passage and showing the opening to permit the flow of water from the upper water-receptacle between the corrugated sheets.

Similar reference-figures refer to similar parts in the different views.

My present invention relates to an apparatus for cooling the water whichhas been heated by the cylinder of an automobile gas-engine; and it consists in certain improvements in the construction of the cooler, as hereinafter described, and pointed outin the annexed claims.

My improved water-cooler is represented at A, Figs. 1 and 2, in position in an automomobile, preferably forming a dashboard in front of the hood B; but its position may be varied, if desired, Without departing from the scope of my invention, which relates to the construction and arrangement of the watercooling surfaces whereby the cost of the cooler is lessened and its durability and efficiency increased.

My improved cooler comprises an upper water-receptacle 1, having a closed opening 2 at the top, through which the cooler may be filled with water,and a lower Water-receptacle 3, the water-receptacles 1 and 3 having openings 4 and 5,through which they are connected by pipes (not shown) with the jacket of the engine-cylinder in the usual and well-known manner. The upper and lower water-receptacles 1 and 3 are connected by water-passages through which the water in flowing from the upper receptacle 1 to the lower receptacle 3 is made to pass between air-cooled surfaces, by which the temperature of the water after having absorbed the heat generated in the cylinder by the operation of the engine is reduced. The construction of these water-passages and air-cooled surfaces is illustrated in Figs. 3 to 6, in which this part of the cooler is represented on a larger scale. The watercooling portion of the apparatus, which is interposed between the upper and lower waterreceptacles 1 and 3, consists of a series of thin corrugated metal sheets,preferably of copper, extending transversely across the apparatus between the vertical sides 6 6,which connect the upper and lower water-receptacles 1 and '3. The corrugated metal sheets are arranged in pairs with the edges of each pair slightly offset, so that when the edges are brought into contact a serpentine space will be formed between the sheets forming a transverse water-passage. Referring to Fig. 3 of the drawings, 7 and 8 denote the upper pair of corrugated sheets inclosing the upper transverse water-passage 9. 10 and 11 denote the second pair of corrugated sheets inclosing a transverse water-passage 12. 13 and 1A denote the third pair of corrugated sheets inclosing a transverse water-passage l5. Similarly-constructed corrugated sheets are shown at 16, 17, 18, and 19 inclosing succeeding waterpassages 20 and 21.

The upper water-passage 9 is formed by placing together the metal sheets 7 and 8, similarly corrugated and having their longitudinal edges offset, as at 22, so as to meet on a line 22, Fig. 3, and be securely soldered together to form a water-tight joint. The ends of the corrugated sheets 7 and 8 are soldered to the vertical sides pieces 6 6 to form water-tight joints. The ends of the sheets 7 and 8 at the central portions thereof are The flat portion left flat or uncorrugated.

23 at one end of the sheet 7 extends from the end of the sheet the extent of one complete corrugation and is provided with an opening 24 in alinement with a similar opening 25 in the bottom of the upper waterreceptacle to allow water to flow from the receptacle 1 into the serpentine water-passage 9. The fiat section 26 at the opposite end of the corrugated sheet 7 extends from the end of the sheet one-half the distance of a complete corrugation, making the flat surface 26 about one-half the width of the fiat surface 23. Similarly, the corrugated sheet 8 is provided with flat surfaces 27 and 28, but with the wider flat surface 27 of the sheet 8 arranged beneath and opposite to the narrow flat surface 26 of the sheet 7 and provided with an opening 29 in alinement with a similar opening 30 in the corrugated sheet 10, through which water may pass from the waterpassage 9 into the second water-passage 12. In like manner communication is established between the waterpassage 12 and the succeeding water-passages 15, 20, and 21, and so on throughout the cooling-section of the apparatus, the lower water-passage communicating with the lower water-receptacle 3, thereby establishing a complete circulation from the jacket of the engine-cylinder to the upper receptacle 1, downward through the cooling-section of the apparatus to the lower water-receptacle 3, and thence back to the cylinder. The circulation of water through the passages as above described may be maintained by suificiently elevating the cooling apparatus above the cylinder, causing the water to flow by gravity, or the movement of the water may be facilitated by the movement of a pump, as is usual in devices of this class.

The corrugated sheets which inclose the water-passages are preferably arranged transversely to the apparatus, causing the water to flow from the upper receptacle into the upper water-passage 9 at one end thereof and moving transversely across the apparatus descends at the opposite end of the passage 9 into the next lower water-passage 12, through which it returns transversely across the apparatus and flows into the next lower water-passage 15, and so on back and forth until it reaches the lower water-receptacle 3. The several pairs of corrugated sheets inclosing the water-passages are arranged with the convex surfaces of the corrugations in contact, as shown at 31 31, Fig. 3, forming airpassages 32, and the contacting surfaces may be attached at intervals by solder, if desired, in order to stiffen the structure and prevent the movement of one corrugated sheet upon another. Each pair of corrugated sheets inclosing the water-spaces is arranged between the vertical sides 6 6, with its longitudinal edges in a horizontal plane; but this is not necessary, as it is obvious they might be inclined with the discharge end of the Waterpassages the lowest which would facilitate the flow of water by gravity. The corrugated sheets are, however, preferably arranged with their rear longitudinal edges the highest, thereby bringing the air-cooled surfaces of the corrugated sheets at'an oblique angle to a horizontal plane, so that when the carriage is in rapid movement the currents of air entering between the corrugated sheets in the direction indicated by the arrows a, Fig. 4, or in a horizontal plane will impinge with more force against the the oblique surfaces of the corrugated sheets and be delivered from the opposite side of the coolingsection in the direction of the arrows 7), Fig. 4.

Each of the corrugated sheets is provided with a seriesof raised projections 33, preferably conical in shape and formed by suitably stamping the sheet metal between appropriate dies in order to bringthe raised projections 33 into the air-space 32, thereby increasing the area of the air-cooled surfaces and also by interposing an obstacle in the path of the moving air-current producing a lateral deflection of the air-current, by which it is brought into contact with a greater surface of the corrugated sheet. I do not, however, confine myself to the particular shape shown of the raised projections 33, as they may be varied in shape and in position; but I have found it a convenient method of construction to arrange said projections, as shown in Figs. 3,

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water-passages, although I prefer to reverse the movement of the water in each alternate passage, as I thereby bring the water into contact with a greater amount of air-cooled surface. If the corrugated sheets were arranged vertically instead of horizontally, the ends of the water-passages, which in the present instance are closed by the vertical side walls 6 6, might communicate directly with the upper and lower water-receptacles. 7

Similar water-coolers to that herein described have been heretofore constructed from a continuous corrugated sheet bent or returned upon itself in alternate folds, with the edges of the sheet offset and united to inclose a serpentine water-passage substantially like that formed in the cooler herein described. Such a construction was shown and described in my pending application, Serial No. 140,999. By my present construction I employ separate corrugated sheets arranged in pairs, with each pair having its convex surfaces in contact to form tubular air-spaces instead of employing a continuous corrugated sheet. I

thereby make each individual water-passage open at its opposite end,which whenthe sheets are arranged horizontally are closed by the vertical side walls 6 6 of the apparatus, and I provide the flattened surfaces 23 and 26 with openings 24 and 29 at the opposite ends of the water-passages in order to form a continuous passage between the upper and lower waterreceptacles.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In an apparatus of the class described, the combination with an upper and a lower water-receptacle,of a water-cooling section interposed between said water-receptacles, said water-cooling section consisting of a series of corrugated metal sheets arranged in pairs, with the longitudinal edges of each pair offset in .opposite directions and soldered together and having their ends soldered to vertical side pieces forming inclosed serpentine water-passages,with the uppermost communicating with the upper water-receptacle and the lowermost communicating with the lower water-receptacle, said corrugated sheets having flat surfaces at their ends, with the flat surfaces of the lower sheet in each pair sol:

dered to the flat surface of the top sheet in the next adjacent pair, and openings through said flat surfaces alternately at opposite'ends 0f the cooling-section, whereby communication is established between the successive water-passages.

2. In an apparatus of the class described, the combination with an upper and a lower water-receptacle, of an interposed water-cooling section, comprising a series of corrugated metal sheets arranged in pairs inclosing a serpentine water-passage connecting said upper and lower water-receptacles, with the convex bends of said sheets in contact to form trans verse tubular air-passages, and a series of raised projections in the concave bends of said sheets extending into said air-passages.

Dated this 28th day of November, 1903.

LOUIS HERMAN BRINKMAN.

Witnesses:

ARTHUR S. HYDE, HOSMER P. REDFIELD. 

